42241143 has 8 divisors (see below), whose sum is σ = 64367488. Its totient is φ = 24137784.

The previous prime is 42241103. The next prime is 42241151. The reversal of 42241143 is 34114224.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 42241143 - 2⁶ = 42241079 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 2011483 = 42241143 / (4 + 2 + 2 + 4 + 1 + 1 + 4 + 3).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42241103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1005721 + ... + 1005762.

It is an arithmetic number, because the mean of its divisors is an integer number (8045936).

Almost surely, 2^42241143 is an apocalyptic number.

42241143 is a deficient number, since it is larger than the sum of its proper divisors (22126345).

42241143 is a wasteful number, since it uses less digits than its factorization.

42241143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2011493.

The product of its digits is 768, while the sum is 21.

The square root of 42241143 is about 6499.3186565978. The cubic root of 42241143 is about 348.2666489159.

Adding to 42241143 its reverse (34114224), we get a palindrome (76355367).

The spelling of 42241143 in words is "forty-two million, two hundred forty-one thousand, one hundred forty-three".